Comparte vídeos con tus amigos, tu familia y el resto del mundo
Polar Flow App Get Started
Polar M400 Review Tested by GearLab
Polar M400 GPS & Activity Tracker Watch In-Depth Review
User manual Polar M400 (English - 100 pages)
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
Runs for Cookies: November 2015
Polar M400 review: A feature-packed GPS running watch that can also track your steps and sleep - CNET
Polar M400 User Manual Button Functions and Menu Structure
Polar Loop Activity Tracker : Sports & Outdoors
Polar Pacer Pro review: same watch in a slightly different package - The Verge
User manual Polar M400 (English - 100 pages)
Polar Loop Activity Tracker : Sports & Outdoors
13 Best GPS Running Watches - Runners First